Electrically-operated railway-gate mechanism



1,517,446 J. MALMBERG ET AL ELECTRICALLY OPERATED RAILWAY GATE MECHANISM Filed Oct. 17, 1923 2 Sfieets-Sheet 1 Deg 2, "1924.

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J. MALMBERG ET AL ELECTRICALLY OPERATED RAILWAY GATE MECHANISM v Filed Oct. '17, x92: 2 Sheets-Sheet z Patented cc. 2, 1924.

JOHN MALMBERG AND OTTO E. NELSON, or MOORHEAID, MINNESOTA.

ELECTRIOALLY-OIPER-ATED' RAILWAY- GATE MECHANISM.

Application filed October 17, 1923.

, and O'r'ro E. NELSON, citizens of the United States, residing at -Moorhead, in the county of Clay and State of Minnesota, have invented certain new and useful Improvements in Electrically-0perated Railway-Gate Mechanism, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an electrically operated railway gate mechanism, and the object of the invention is the construction of a simple and eificient mechanism or system which, when a circuit is closed by the locomotive or train, will operate to raise, or lower (as the case may be) the gate, or gates, usually found at a crossing (including a roadway and a side-walk).

l/Vith the foregoing and other objects in view, our invention comprises certain novel combinations, constructions and arrangements of parts as will be hereinafter described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a fragmentary view, in front elevation, of a mechanism constructed in accordance with the present invention, while Figure 2 is an end View of the same.

Figure 3 is a top plan view of the mechanism.

Figure 4; is a complete diagram of the wiring of the system or mechanism.

Figure 5 is sectional view, taken on line 5-5, Fig. 6.

Figure 6 is a perspective view of the cylinder member, attached to the vertical shaft.

Referring to the drawings by numerals, 1 designates a suitable support upon which is placed the motor 2. The motor 2 is provided with a drive shaft 3, which shaft is provided with worm l. l/Vorm 4 meshes with the worm gear 5. The worm gear 5 is fixedly secured to the vertical shaft 6, and shaft 6 carries a bevelled gear 7, near its upper end. The upper end of shaft 6 is journalled in the auxiliary bracket 8 and auxiliary bracket 8 is fastened at 9 to the primary bracket 10.

The primary bracket 10 is suitably secured or mounted upon support 1. A short horizontal shaft 11 is journalled upon brackets 10 and 8, and on the inner end of shaft 11 is fixedly secured bevelled gear 12, which gear meshes with gear 7 whereby, when the Serial No. 669,137.

motor rotates shaft 6 shaft 11 will be rotated for raising or lowering the main gate 13 that extends across the drive-way orroadway; gate 13 is suitably secured to shaft 11 as well as small gear lt. Gear 14.- meshes with gear 15 carried by shaft 16. F astened to shaft 16 is a side-walk gate 17. It will, 2 therefore, be seen that when the motor 2 is operated gates 13 and 17 will-both be swung or operated. I

Contact rails 18 are placed between the standard rails 19 and the electric wires 20, carried by the engine 21 (Fig. 4) are positioned so as to close a circuit through contact rails 18, by means of a suitable switch 22, actuated by the engineer on the locomotive.

Fastened to the lower end of shaft 6 is a cylinder-like member 23 which is journalled, at 24, (Fig. 2), upon the support 1. On the side of cylinder member 23 is formed an upper, inclined slot 25, an intermediate, inclined slot 26 and a lower, inclined slot 27 Wire 28 is connected at one end to brush 25, and the other end is connected to the motor brush 29. Wire 30 is connected at one end to the brush 26 (Fig. 4) and its other end is connected to motor brush 31. The brushes 25 and 26 work, at their inner ends, in the slots 25 and 26, respectively.

WVire 36 is connected at one end to one of the contact rails 18 and its other end is connected to the upper slot 25, as well as being connected to post or brush on the opposite side of post 35. The post here mentioned is really a sliding contact or brush on a collector ring (Fig. 1) on top of cylinder member 23.

It is to be understood that the brushes 25 and 26 are stationary with frame 1; therefore, it will be seen that the switch blades are made of spring brass and slide through slots 25 and 26, as the cylinder member 23 revolves until the switch blades slide out of one end of the slots 25 and 26 and drops into slots 26 and 27 which reverses the motion of cylinder 23. These slots are set or formed so that the switch blades press downwardly on the slots 26 and 27 at the upper end, and an upward pressure on slots 25 and 26 at the lower end.

While we have described the preferred e1nbodiment of our invention, and have illustrated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates, during the extensive manufacture of the same and We, therefore, reserve the right to make such alterations or changes as shall fairly fall within the scope of the appended claims.

What we claim is:

1. In a device of the class described, the combination With a support, of a vertical shaft journalled upon said support, a pair of horizontal shafts, gates attached to said horizontal shafts and extending radially therefrom for swinging vertically into and out of an operative position when the horizontal shafts rotate, means for transmitting rotary I'nove'ment from one horizontal shaft to the other and causing the horizontal shafts to ro- 'ta'te inopposite directions, means for transmitting rotary movement from said vertical shaft to one of said horizontal shafts, and means for rotating said vertical shaft, Whereby movement will be imparted to the gates.

2. In a mechanism of the class described, the combination With a support, of a vertical shaft journalled upon said support, a primary and an auxiliary bracket on said support and parallel to said vertical shaft, a pair of horizontal shafts journalled upon said brackets, gates attached to said horizontal shafts, meshing gears on said horizontal shafts, meshing bevelled gears on said vertical shaft and one of said horizontal shafts,

and means for rotating said vertical shaft, whereby movement will be imparted to said gates.

3. In a mechanism of the class described, the combination with gates, of a vertical shaft provided with a cylinder, means connecting said vertical shaftto said ates, said cylinder provided with a plurality of slots, brushes extending into some of said slots,

and adapted to move out of the same and move into other slots as the cylinder and vertical shaft rotates, a switch, means electrically connecting said switch and brushes,

a motor, means electrically connecting said said switch to said brushes, a motor, and

means'electrically connecting said motor to sald brushes, for the purpose described.

In testimony whereof We hereunto affix our signatures.

JOHN BIALMBERG. OTTO E. NELSON. 

